Bed-bottom



(No Model.)

S. J. DIGKSON.

BED BOTTOM.

o. 398,547. Patented Nov. Z7, 1888.

UNITED STATES PATENT` OFFICE.

SAMUEL J. DICKSON, OF CHICAGO, ILLINOIS.

BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 393,547, dated November 27, 1888.

Application filed July 21, 1888.

To all whom t may concern.-

Be it known that I, SAMUEL J. DIcKsoN, of Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Bed-Bottoms, of'which the following is a specification.

This invention relates to that class of bedbottoms which consist of a strip of canvas or similar liexible material attached with its ends to supporting-rollers, between which the canvas is stretched by winding thesame upon said rollers.

The object of my invention is to construct the bed-bottom in such a manner as to render the same more yielding or elastic, and also to improve the means whereby retrograde movement of the stretching-roller is prevented.

My invention consists of the improvements which will be hereinafter fully described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is alongitudinal sectional elevation of a bcdstead provided Withmyimproved bed-bottom. Fig. 2 is a top plan View thereof. Fig. 3 is a transverse section in line x Fig. l. Fig. 4 is a crosssection in line y y, Fig. 3. Fig. 5 is an elevation of one ofthe supporting-brackets of the stretching-roller. Fig. 6 is a fragmentary longitudinal section of the stretching-roller. Fig. 7 is an elevation of the opposite supporting-bracket of the stretching-roller.

Like letters of reference refer to like parts in the several figures.

A A represent the side frames of the bedstead.

B represents the horizontal stretching-roller arranged at the head of the bedstead between the side frames, A A.

B is a horizontal roller` journaled at the foot of the bed, and C is a cross piece or bar arranged below the stretching-roller.

D represents the canvas or other iiexible material,which runs around the foot-roller B, and is secured with one end tothe stretching-roller B, and with its opposite end to the cross-piece C. The foot-roller B is preferably journaled at one end in a closed socket, e, formed in a bracket or plate, e', secured to the inner side of the side piece A, and at its opposite endin a jaw or open socket, e2, formed in a bracket, e, secured to the inner side of the side piece A', so that the footroller can be readily in- (No model.)

sorted in its bearings and be removed therefrom when desired.

The cross-bar C is provided with square or flat-sided ends, and is seated at one end in a square socket, f, formed in a bracket, F, secured to the inner side of the side piece A near the head of the bed, and at its opposite end in a three-sided socket, f', formed in a bracket, F, secured to the inner side of the side piece A. The open socketf permits the cross bar C to be removed.

The stretching-roller B is journaled with one end in a jaw or open socket, g, formed in the bracket F above the socket f', and is provided at its opposite end with a ratchet-wheel, l1., which is loosely fitted in a closed socket, z', formed in the bracket F above the square socketf. The socket is formed by a projecting rim, z", formed en the bracket F, and is made somewhat larger than the ratchet-,wheel h, so as to allow of a slight play of the ratchetwheel in the socket.

j represents a series of teeth or projections formed on the front portion of therim t" within the socket t', and which engage with the teeth of the ratchet wheel when the latter rests against said teeth, and thereby prevents retrograde movement of the ratchet-wheel and the stretching-roller. The teeth j are provided with abrupt faces and inclined backs, so as to limit the backward movement of the ratchetwheel, While permitting the same to turn forwardly by its teeth riding over the inclined backs of the teeth j.

The end of the stretching-roller B adjacent to the ratchet-Wheel h is preferably made atsided, so that the same can be turned by a proper wrench or tool. Upon turning the stretching-roller forwardly the end of the canvas D is wound upon the roller B,and is drawn around the foot-roller B and tightly stretched. Upon releasing the stretching-roller the elasticity of the canvas draws the ratchet-wheel 71J forwardly against the teeth j of the socket i, thereby causing the teeth of the ratchet-wheel to engage with the teeth of the socket and preventing backward inovement of the stretchingroller. When the canvas becomes loose and sags, it is again stretched by giving the stretching-roller B a forward turn.

The stop device of the stretching-roller is very simple in construction, and it avoids the IOO use of pawls or other deviccs,which areliable to become broken,and which increase the cost of the bedebottom.

The bed-bottom is readily removed from the bedstead by withdrawing the supporting-rollers B B and the cross-bar C from their sockets,

the rollers and the crossbar being,` mounted at one end in open sockets, as shown, so that this can be conveniently done.

By doubling` the canvas of the bed-bottom or arranging the same in two lengths, as shown, its stretching area is enlarged,and the bottom is rendered more yielding and comfortable.

I claim as my inventionl. In a bed-bottom, the combination, with the side frames provided at opposite ends with suitable brackets, ofa cross-bar, C, jonrnaled in the brackets at one end of said frame, a stretching-roller,B,journaled in said brackets and arranged above the cross-bar C, and provided with a suitable ratchet,- device, a roller, B', journaled in brackets secured to the opposite end of said frame, and a continuous stripV of canvas, D, extending around the roller B at one end ofthe frame and secured at its ends tothe cross-bar @,and roller B at the opposite end ofthe frame forming a double bottom,sub stantially as set forth.

2. The combination, with the frame of the bedstead, the roller B', and the cross-bar C, having angular ends, of the stretching-roller B, provided at one end with a ratchet-wheel, h, a bracket, F', provided with angular and round sockets j" g, for receiving one end of said stretching-roller and cross-har, and a bracket, F, provided with an angular socket, f, for receiving the opposite end of' the cross-bar C, and with a socket, 1i, supporting the opposite end of the stretching-roller and having internal teeth, j, substantially as set forth.

fitness my hand this 14th day of July,1SSS.

SAliIUEL J. DICKSON.

\Vit.nesses:

C. F. GEYER, FRED. C. GEYER. 

